Pathway analysis revealed that upmethylated transcripts were involved in “ABC transporter,” “cell motility,” and “cell adhesion molecules” (Figure 4(g), P < 0.05), whereas downregulated transcripts included “Wnt signaling pathway,” “gastric cancer,” and “alcoholism” mostly (Figure 4(h), P < 0.05). Here, ABCG2 is linked to alcohol dependence.